package com.xyazm.product.service.impl;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.xyazm.common.utils.PageUtils;
import com.xyazm.common.utils.Query;
import com.xyazm.product.dao.AttrGroupDao;
import com.xyazm.product.entity.AttrEntity;
import com.xyazm.product.entity.AttrGroupEntity;
import com.xyazm.product.entity.CategoryEntity;
import com.xyazm.product.entity.vo.AttrGroupWithAttrsVo;
import com.xyazm.product.service.AttrGroupService;
import com.xyazm.product.service.AttrService;
import com.xyazm.product.service.CategoryService;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {

	@Autowired
	private CategoryService categoryService;
    @Autowired
    private AttrService attrService;
    
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

	@Override
	public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
		String key = (String)params.get("key");
		QueryWrapper<AttrGroupEntity> queryWrapper = new QueryWrapper<AttrGroupEntity>();
		if (StringUtils.isNotBlank(key)) {
			//select * from pms_attr_group where catelog_id=? and (attr_group_id=key or attr_group_name like %key%)
			queryWrapper.and(obj -> {
				obj.eq("attr_group_id", key).or().like("attr_group_name", key);
			});
		}
		// catelogId 等于0时 查询全部信息
		if (catelogId != null && catelogId > 0) {
			//查询指定三级分类下的数据catelogId
			queryWrapper.eq("catelog_id", catelogId);
		}
		IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),queryWrapper);
		findCatelogName(page);
		return new PageUtils(page);
	}
	
	
	private void findCatelogName(IPage<AttrGroupEntity> page){
		List<AttrGroupEntity> attrGroups = page.getRecords();
		attrGroups.stream().forEach(obj ->{
			Long catelogId = obj.getCatelogId();
			CategoryEntity category = categoryService.getById(catelogId);
			obj.setCatelogName(category.getName());
		});
	}
	
    /**
     * 根据分类id查出所有的分组以及这些组里面的属性
     * @param catelogId
     * @return
     */
    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        //1、查询分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        if (attrGroupEntities == null || attrGroupEntities.size() == 0) {
			return new ArrayList<AttrGroupWithAttrsVo>();
		}
        //2、查询所有属性
        List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(group -> {
            AttrGroupWithAttrsVo attrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(group,attrsVo);
            List<AttrEntity> attrs = attrService.getRelationAttr(attrsVo.getAttrGroupId());
            attrsVo.setAttrs(attrs);
            return attrsVo;
        }).collect(Collectors.toList());

        return collect;

    }

}